Pneumatic paint-tool.



PATENTED AUG. 6, 1907.

E. F. HULBERT.

PNEUMATIC PAINT TOOL,

APPLICATION FILED DBO. 26. 190B.

Wifnaoaaa No. 862,164. PATENTED AUG. 6, 1907. E. F. HULBERT.

PNEUMATIC PAINT TOOL.

APPLICATION TILED DEC. 26, 1906.

13''. F 1/ 4 ZZert,

PNEUMATIC Specification of Letters Patent.

PAINT-TOOL Patented Aug. 6, 1907.

To all whom it may concern:

Be it known that Enwm F. HULnnn'r, a citizen of the United States, residing at Kruoslur, in the county of Kenosha and State 0% Wisconsin, has invented certain new and useful Improvements in Pneumatic Pai nt- Tools, of which the following is a specification.

This invention relates to tools which apply liquid to a surface in the form of spray, being of special advikutage in pai ting and stenciling railway cars and painting and lettering all kinds of boxes and packages, bulletin boards, signs and the like.

The present invention provides a tool of the type aforesaid which will involve a novel construction and arrangement of parts, a valve mechanism and a swive .head ca pableof adjustment to any angle with reference to the hurdle to within about 90 degrees.

--For a full description of the invention and the merits thereof and also to'acquire a knowledge of the details of consjtr u ction oi the ineans for effecting the result, reieren ce is to be had to the followin' e invention may 'be adapted todifferent description and acforms n'd 'do'ii'ditibnsbychanges;in- -tl1e"structure and minor e ails without departing from the spirit or essential features thereof, still thepreferred embodiment is show ii the accompanying drawi ngs, in which:

Figure 1 iii-a peifs'pe tive view of a pneumatic paint mb'odying r eipveiusn; Fig.2 i a central longiection thereof; 1 -3 is a horizontal section 6f the handle portidnbf'tlre'tbol showing the bolster thereot in' full so as to indicate the channel's formed therein constituting passages for the air and liquid. iFig.-4 is a detail view of the swivel head showing the (:e thereofiinclined so' as to-indicate the relation of the channels formed therein for cooperation with the companion channels provided in the bolster. Fig. 5 is adetail view of the valve. Fig. 6 is a longitudinal section of the swivel head and the bolster, showing the parts on a larger scale.

COII'OSPOlNllHg and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The tool. comprises, essentially, a handle A and a swivel head 13. The parts A and B may be of any construction dependent upon the design of the tool and may be formed of any material, metal being preferred.

' For the sake of lightness aluminium has-been found best adapted for the purpose.

The handle portion of the tool consists of a grip 1 and a bolster 2, said parts being spaced apart and preferably connected by means of a rod or tieB. Passages 4 and 5 f are formed in the handle in any convenient way and provides ducts through'which air and liquid are free to in the operation of the tool. ;Goupling-enda 6 are fitted to or apart of the handle and communil cute with the respective passages and are adapted to have fixed tubing attached thereto for coni'lecting the tool with the source of supply of air and liquid.

The inner or opposing ends of the grip and bolster are reinforced by plates 7 and 8 which are preferably of brass so as to resist wear and maintain a close joint with the rotary valve 9 interposed between the partsl and and mounted upon the rod or tie 3. The plates 7 and 8 form reinforcements and each is recessed upon its outer side, as shown at 10, to form a seat to which is snugly fitted a raised portion 11 of the rotary valve-9. i Each face or side of the rotary valve has a raised part 1.1 to snugly fit within the recess or seat 10 of tire respective plate or reinforcement 7 or S. The rotary valve is preferably of steel or iron and is of a diameter to come about flush with the outer circumferenceo'f' he handle, its projecting edge portion being milled roughened, a firm grip being had thereon when'it i8i01 quired to manipulate the valve eitherto regulat t supply of air or liquid or to shut off the same' ings 12 and 13 are formed in the valvetlaiidxar sitioned as to register with the passages handle in one position of-tlie valve f l The opening is elongated, whereas the opening 13 is round or of a i size to register with the passage 5. The openin 12 and 13 are arranged at diametrically oppositeipoi and when the opening 9 is in register with the pas the opening 12 occupies exposition with the passage 4 so as to have its end portions pro an equal distance upon opposite sides thereoffi The construction of the opening 12 in the manner stated admits oi the opening 13 being thrownou t of register with the passage 4 without entirely shutting. off communication between the passage 4 and opening I 12. This result takes place upon movement of the 9 valve in 'either direction and admits of clearing the tool of liquid or paint alter the latter has been shut off by run-rati u f file Vil-lVl. The construction also admits of ('I'Hlllllt! a suction through the tool preliminary to admitting I In liquid thereto by means of the valve 9, thereby insuring proper operation of the tool at the outset. It is noted that the valve is interposed between the parts 1 and 2 of the handle and that said parts may be relatively adjusted to secure and maintain a close joint between opposite faces of the valve and the adjacent faces of the parts or sections of the handle. To effect this adjustment, the rod or tie 3 has an end portion extended beyond the outer end of the grip 1 and threaded to receive a set nut 14 and a jam nut 15. Said rod or tie 3 is secured to the bolster 2 in any manner and has apart made angular and fitted into the grip 1 so. as to insure perfect registry of the passages 4 and 5' when the parts 1 and 2 are assem;

I bled. M

The bolster 2 is provided with a face 16 at one side,

the uanuforming n soul. [or rcooptiou ol' lluluurl l.

which in conruurtod thereto by a swivel joint. The passages 1 and 55 extend l l|1'ol| o;l| the lanu; and unlocatcd at dutnu'trically npluuiltu puilltn. A rluuuud l7 lornu'd in tluliltu 1(5,hormouuicuLr-s \\'ll.ll llupin-:-

sage 4 and a correspondiug channel ,lli lilo-wine lorun-d in the face Hi lends from tl'npassage b, lloth channels are forn'iud on arcs of a circle having its center coinciding with the axis oi the swivel ln-nd ll. As shown, the channels extend in opposite (.lirr-ctious from the respective iiassagcs.

The swivel head ll comprises a base 19 and a. cylinder 20. The base 19 is preferably of circular forlnalion and is adapted to obtain a close [it upon the lace or seat 16 of the bolster. The passages 4 and 5 extend through the base 19 and communicate with the cylinder 20 andare located at diametrically opposite points so as to register with the passages in the face of the bolster in one position of the head with reference thereto. Channels 21 and 22 are formed in the face or seat of the base 19 and communicate at one end with the respective passages 4 and 5 and extend in opposite directions upon curved lines forming arcs of a circle whose center co-incides with the axis of the head. The channels 21 and 22 cooperate with the respective channels'17 and 18 and admit of turning the head 13 toany angular position with reference to the handle to within about 90 degrees. The construction is such as to admit of shutting off the supply of material by turning the head B so as to throw the cooperating or mating channels out of register. Any suitable means may be employed ior connecting the head B to the bolster to admit of its free rotation to allow of ready removal of the head for any desired purpose. As shown, a. pin 23 is let into thehead B and passes through an opening of the bolster, the projecting ends being threaded to receive a washer 24 and set nut 25. By

tightening the set nut 25, the head may be secured in any desired position.

The cylinder 20 is subdivided by a partition 26 into compartments 27 and 28, the compartment 27 being in communication with the air passage 4 and the compartment 28 connecting with the liquid passage 5. An injector nozzle 29 is iitl ed into the partition 26 and is. l l'clfcrzihly lllrcndcd therein lo :ulnlil of relative :uljustmcnt. said nozzle being: placed in posilion through the open end of the cylinder which is subsequently closed by means of a plug, 3Q. A washer 31 is' threaded into the opposite end of the cylinder 20 and receives the distributing nozzle 32 which is threaded therein and secured in the located position by means of ajam nut 33. The distance between the opposing ends of the injector and the distributing nozzle may be regulated either by moving one or the other of said parts'or by turning both. The construction is such that access may be readily had to the interior of the cylinder for cleaning and the nozzle may be readily removed either to be subdivided by others of different size or to be replaced when worn or for any desired purpose,

In the practical operation of the tool, it is connected hymubber tubing, not shown, to a source of supply of compressed air and the liquid or paint to be distributed,- said connection being made in the usual manner.

Upon turning the valve 9, the air passage isfirst opened,

llu'r lu' pcrluittuug air under preouure to para: through llu: lool and out through the diulriliutiugg nozzle. tluu'o l| -.'=l;lhli:;hilu 1;| .-:|u:l.iou in the l'olupnrllueul 28 which upon opening; ol the liquid muuu e by u l'ulllu'r turn-- log of [he vulvo enables the liquid or paint lo be drawn through the tool and atomized. The bond ll may he llll'lHll with rel'erinlce to the handle A lo admit of the jel or spray being directed in any position to suit the ('ouuorl ol' the \Vtll'lilllllll and us the nature of the work may require so as to obtain the best results. When it. is required to shut oll the supply, the valve ll is turned with the result that the liquid or paint is first shot oll' and subsequently the air cut oil. This operation admits ol the air passing through the tool blowing off the liquid or paint remaining in the bolster and head after the same has been shut off by means of the valve. thereby preventing dripping and the clogging of the tool by the materialhardening therein,

Having thus described the invention, what is claimed as new is:

1, 1n a tool of the character described, the combination of a handle portion provided with air and liquid passages and having ,1 face in which are formed channels in cornmunlcntion with the respective passages, and a head provided with a distributing nozzle connected to said handle portion by menus of a swivel joint and having a face obtaining a close fit against the face of said handle portion and in which are formed channels in communication with air and liquid pnssages of said head, the respective channels establishing communication between the handle- :lnd head portions of the tool in the several angular adjustments of the said head. v

In a tool of the character described, the combination of handle and bend portions connected by means ofa swivel joint, each being provided with div and liquid passages, thehcad having a distributing nozzle and the leading faces of said parts having complemental channels formed therein in'communicn'tion with the respective air and liquid passages to admit of communication being maintained between the respective pals-sages in the relative angular adjustment of .the head within certain limits, said channels and passages being adapted to be thrown out of register when the head is turned to a point beyond a predetermined position.

3. In a tool of the character-described, the combination of handle and head portions, each provldcd with an air and a liquid passage and with a face forming a seat through which the respective passages extend, means for voumacting: the bend to the handle portion to admit of relative angular adjustment thou-col, and other menus [or drawing (lnparts lll 'l'llul' eillu'r 1'o sl-rurilluuu in :1 lul'dlt'll |m. lll(lll ill to lukn up \rczlr.

l. In :1 tool of Ilnvhurul-lcr ill-scribed. :1, cylinder open at each end and sululividiid lnlo comporlzlnouls h means of a purtltion, an injector nozzle mounted in said partition and inscrtible through an open end of the cylinder, a closer removably fitted to one end 01' the cylinder, and a distributing: nozzle fitted into and closing the opposite end oi; the cylinder.

5. In a tool of the character described, an open ended cylinder subdivided into compnrtments by means of n partition, an injector nozzle mounted in said partition and adjustable with reference thereto, means reiuovably fitted to one end of the cylinder for closing the some, a washer fitted to the opposite end of the cylinder, a dia trlhuter nozzle ndiustnbly mounted in said washer, and means for securing: the distributor nozzle in an adjusted position.

ll. in a pneumatic tool of the character described, the combination of sections, each having an all and a liquid passage, and a valve interposed between sold sections and provided with openings to register with the passages opposite said sectlons. h

7. In a pneumatic tool, of the character described, the

combination of sections, each having an air and a liquid passage. and a valve interposed between said Heelions and provided with openings to register with the passages opposite said sections, one of the openings of said valve helm, larger than the other to admit of closing or opening the liquid passage without interrupting communimiiiou through the air passage of said section.

In a pneumatic tool of the character set forth, the combination of corresponding sections, each formed with an air and a liquid passage, reinforcements fitted lo the opposing ends of said sections, and a valve interposed between the said sections and obtaining a seat against each of said reinforcements and provided with openings to register with the passages formed therein.

9. In a tool of the character set forth, the combination of sections, each provided with corresponding passages and having their opposing ends recessed to form seats. and a rotary valve interposed between said sections and having raised portions upon opposite faces to enter the recess of said section and fitting the same closely, said valve having openings to register with the respective passages of said sections,

10. In a fool of the character descrilled,'tl1e comhination oi? sections, each having passages, means for connecting the sections and admitting," olf their relative adjustment, and a valve iitted between the sections.

11. A tool of the character described, the combination sections provided with corresponding air and liquid a tie for conuecthu, the sections and serving to hold them in a lixed relative position, means for 00- oporating with said tie to admit of relative adjustment of the sections, and a valve mounted upon said tie and arranged hetween the sections.

12. A pneumatic tool of the type described comprising a handle portion made in sections, a head connected to one of said sections hr means 01. a swivel joint to admit oi. its relative angular adjustment, the head and sections having correspondi air and liquid pa ees, and a valve arranged between the sections ltfillllll'lsil'lg said handle.

In testimony whereof I aflix my signature in presence of two \vitn es.

EDWIN F. HULBE 11.. [11.5.]

Witnesses I). llunnnn'r, L. (l. BROOKS. 

